To resolve sealing problems, the CLUFIX® range includes a variant with an under-head seal.
Product range: flange head with under-head seal, round or hexagonal body, stainless steel or 316L stainless steel.
The application and the constraints linked to it determine the type of seal to be used. The table below enables selection of seal material.

Name: Precote 5Type: Thixotropic product (= which liquefies under stress)Colour: Light blueResistance in the following conditions:

Air - 50°C to + 180°C

Engine oil + 150°C

Gear Oil + 150°C

Glycol / Water 50/50 + 120°C

Tap water + 100°C

Brake fluid + 150°C

Petrol Ambient temperature

Diesel Ambient temperature

Resin sealing product characteristics

Resin thickness: About 0.25 mmResin height: at least 4mm above the flush head

Crimping watertight CLUFIX® with resin sealing

1. Insertion of CLUFIX® into hexagonal hole:

The resin sealing is laminated when the CLUFIX® is introduced into the hexagonal hole in the sheet metal.
Product surplus is discharged to the front, around the flush head. Maximum crimping capacity is therefore slightly reduced by 1mm – t, where t is the amount by which the head protrudes not including the resin sealing.

2. Clufix® Crimping:

During crimping:

One part of the product is compressed under the crimping force, creating a first watertight seal.

The other part of the product is ejected, forming a sort of bulge which reinforces the seal at the final assembly stage.

Assembly after crimping watertight CLUFIX® with resin sealing

During the final assembly stage, a second sheet of metal is fixed against the first sheet of metal, where the CLUFIX® is crimped.
The flush head and the bulge are compressed between these two sheets of metal, creating a second watertight seal.

Guaranteed Seal Rating

Tests have enabled us to demonstrate a seal that is compliant with the standard CEI60529 for an IP67 rating.

Conditions for storage and for delayed use

Our CLUFIX® that are watertight through coating can be stored loose in normal storage conditions (ordinary temperatures and humidity levels).
Crimping can be carried out even after a long period of storage, of several months or years.
In the same way, after crimping, our CLUFIX® that are watertight through coating guarantee a longlasting tight seal.

Other references

Other CLUFIX® references (thread dimensions, crimping thicknesses, designs, materials, etc.) can be offered on demand.
For specific conditions of use, please don't hesitate to contact us, because we also offer other sealing products.

The sealed CLUFIX® solution has been assessed in compliance with the CEI 60529 standard, which lays down the degree of protection (IP). These IP codes correspond to seal requirement levels, which are expressed by the tests described in the table below.